STOCKTON, Calif., March 20 /PRNewswire-FirstCall/ -- Pac-West Telecomm, Inc. (OTC:PACW.PK), a leading provider of traditional and next-generation voice communications services, today announced that its national network now provides Service Providers with the ability to reach to over 167 million people in the United States. Hank Carabelli, Pac-West President and CEO, commented, "Service Providers now have access to one of the largest local interconnection networks in the country. The Pac-West network provides our customers with a national single-source solution that supports their needs for a bridge between IP and PSTN-based networks, phone numbers and telephony database services." "A nationwide provider like Pac-West presents us with robust and scalable voice communications services and the necessary infrastructure elements to help support our expansive and growing residential Internet phone service membership base," said Mark Fedor, SunRocket Chief Technology Officer. Carabelli continued, "We are pleased to see SunRocket on our nationwide network. Pac-West continues to add new customers who are seeking alternative choices to bridge IP and traditional PSTN-based networks." Pac-West's national infrastructure is designed to serve the needs of VoIP Providers, Wireless Broadband Providers, Internet Service Providers (ISPs), Carriers and other companies looking to provide voice services to their customers. About Pac-West Telecomm, Inc. Pac-West is a provider of advanced communications services that enable traditional and next-generation providers, carriers, and service providers to efficiently design, deploy, and deliver integrated communication solutions. Currently, Pac-West's network serves over 167 million people in the United States. Founded in 1980, Pac-West Telecomm, Inc. has been offering communication services to its customers since 1982 and has been a leading provider of wholesale services to Internet Service Providers. For more information, visit http://www.pacwest.com/. Forward-Looking Statements In this press release, our use of the words "outlook," "expect," "anticipate," "estimate," "forecast," "project," "likely," "objective," "plan," "designed," "goal," "target," and similar expressions is intended to identify forward-looking statements. While these statements represent our current judgment on what the future may hold, and we believe these judgments are reasonable, actual results may differ materially due to numerous important risk factors, including risk factors described in our Annual Report on Form 10-K for the period ended December 31, 2005, as filed with the SEC on March 29, 2006, which may be revised or supplemented in subsequent reports filed by us with the SEC. Such risk factors include, but are not limited to risks associated with: our level of indebtedness; our inability to comply with the covenants contained in, or the possibility of triggering a default under, our borrowing arrangements, our inability to execute our business plans and objectives, regulatory and legal uncertainty with respect to intercarrier compensation payments received by us; the migration to broadband Internet access affecting dial-up Internet access; the loss of key executive officers that could negatively impact our business prospects; an increase in our network expenses; our principal competitors for local services and potential additional competitors, which may have advantages that may adversely affect our ability to compete with them. DATASOURCE: Pac-West Telecomm, Inc. CONTACT: media, John Amaya, +1-209-926-4371, or , or investors, Reid Cox, +1-209-926-3417, or , both of Pac-West Web site: http://www.pacwest.com/

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